Improvement in stuffing-boxes for propeller-shafts



F. H. LAUTEN. Stuffing-Box forvPropeller-Shafts.

No. 198,030. Patented Dec. 11,1877

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e q Z l E EF E 0 ",FETERS. FHUYO-UYHOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT OEEIcE.

FRANK H. LAUTEN, OF NEW YORK, N. Y.

IMPROVEMENT IN STUFFING-BOXES FOR PROPELLER-SHAFTS.

Specification forming part of Letters Patent No. 198,030, dated December11, 1877 application filled November 3, 1877.

` To all whom it may concern:

Be it known that I, FRANK H. LAUTEN, of

the city, county, and State of New York, have.

specification.

The object of my invention is to enable the connecting-rod to bedirectly attached to the propeller-shaft exteriorly to the .hull of thevessel, allowing said shaft freely to vibrate, and making the openingthrough which it passes water-tight.

The invention is particularly applicable to l propellers arranged at thesides of a vessel,

and where two or more are employed.

Figure l is a vertical section, Fig. 2 an elevation, and Fig. 3 ahorizontal section, illustrating the same.

In the drawings, A is a portion of the hull of a vessel; B, asteam-cylinder; b, the head of the piston-rod, or a cross-head, to whichis attached the connecting-rod O, passing through the globular casing orvalve D, which is provided with trunnions d, resting in bearings in theplate or box E. The exterior surface of the plate E is made perfectlytrue and smooth, to correspond with the inner surface of thefriction-plates F F let into or firmly secured to the hull A, packings ee being interposed between E and F F. The plates F F have turned-'overflanges ff, or 'these are made separate and iirmly secured to F F. Theyserve as guides to the plate E, and to keep it in contact with vthepacking e 0,. to prevent the entrance of water. G is the propellercrankshaft, exterior to the hull.

The opening or seat for the valve D and the valve itself are providedwith suitable packing to' prevent the entrance of water.

The reciprocating movement of the piston, through the medium of the ballD, causes a corresponding reciprocation of the plate or box E, whichfollows the movement of the outer end of the connecting-rod, keeping theopening necessary to allow sufficient play to said rod' constantlyclosed, and preventing water from entering the vessel.

The plate or box E, the weight of which is neutralized by thecounterpoise M, constitutes, in fact, a movable part of the shell of thevessel, and may be considered as constituting a portion of the hull. w

It is obvious that the details herein shown and described may bevariously modified without departing from the general principle of myinvention, which consists in closing the opening necessary-for theconnecting-rod or equivalent by means of a sliding device, constitutingessentially a part of the hull.

I claim as my invention l. The movable section of the shell or hull of avessel'reciprocating against or Within the mainframe of the hull, incombination with the pitman-rod O or its equivalent, substantially asand for the purpose speciied.

2. The combination and arrangement of the pitman C with the slidingplate E, whereby the gate is raised and lowered at each revolution ofthe crank, substantially as specified.

3. rIhe combination and arrangement of pitman C, ball-,casin g D, andsliding plate or box E, substantially as described.

4. The combination and arrangement of connecting-rod C, ball-casing D,sliding plate or box E, plate or plates F F, and crank-shaft Gr, inconnection with the hull or framing of a vessel, substantially as andfor the purpose specified. i

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses. Y

FRANK H. LAUTEN.

Witnesses HUGO KOELKER, J oHN McMAHoN.

